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PUNJAB BOARD PREVIOUS YEAR PAPERS-ELECTROMAGNETIC INDUCTION-EXERSICE
- Define the term magnetic flux.
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- Weber is the unit of which physical quantity ?
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- State Lenz’s law of electromagnetic induction.
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- What is the basic cause of induced e.m.f.?
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- What is back emf ?
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- What is meant by magnetic flux? State its S.I. unit.
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- What is meant by magnetic flux? State its S.I. unit.
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- State Lenz’s law of electromagnetic induction.
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- Define S.I. unit of self inductance.
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- What is meant by magnetic flux? State its S.I. unit.
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- Define pH.
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- Define S.I. unit of self inductance.
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- State Lenz's rule to find direction of induced current.
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- State Lenz’s law.Give one example to illustrate it.
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- What are eddy currents ? Give experiment to explain their origion.
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- State and explain Faraday’s law of electromagnetic induction.
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- Define co-efficient of self-induction and find an expression for it fo...
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- Prove that Lenz’s law obeysthe law of conservation of energy.
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- Define co-efficient of mutual induction and find an expression for it.
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- Write the laws of electromagnetic induction.
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